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new 380c3f42ab [Refactor](datev2) Update comments for datev2/datetimev2
(#12823)
380c3f42ab is described below
commit 380c3f42abe67c5d63b1bf12f3e816971bf10294
Author: Gabriel <gabrielleeb...@gmail.com>
AuthorDate: Sun Sep 25 18:43:32 2022 +0800
[Refactor](datev2) Update comments for datev2/datetimev2 (#12823)
---
be/src/vec/data_types/data_type_time_v2.h | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/be/src/vec/data_types/data_type_time_v2.h
b/be/src/vec/data_types/data_type_time_v2.h
index d2a6cefae6..f65768a45c 100644
--- a/be/src/vec/data_types/data_type_time_v2.h
+++ b/be/src/vec/data_types/data_type_time_v2.h
@@ -23,7 +23,7 @@ namespace doris::vectorized {
/**
* Use UInt32 as underlying type to represent DateV2 type.
- * Specifically, a dateV2 type is represented as (YYYY (16 bits), MM (8 bits),
DD (8 bits)).
+ * Specifically, a dateV2 type is represented as (YYYY (23 bits), MM (4 bits),
dd (5 bits)).
*/
class DataTypeDateV2 final : public DataTypeNumberBase<UInt32> {
public:
@@ -47,6 +47,12 @@ public:
static void cast_from_date_time(const Int64 from, UInt32& to);
};
+/**
+ * Use UInt64 as underlying type to represent DateTimeV2 type.
+ * +---------------date
part---------------+-----------------------time part------------------------+
+ * | 27
bits | 37 bits |
+ * Specifically, a dateTimeV2 type is represented as (YYYY (18 bits), MM (4
bits), dd (5 bits), HH (5 bits), mm (6 bits), SS (6 bits), ssssss (20 bits)).
+ */
class DataTypeDateTimeV2 final : public DataTypeNumberBase<UInt64> {
public:
static constexpr bool is_parametric = true;
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